Corner protecting plate for structural building blocks



|.- STAGG' Sept. 23, 1941,

CORNER PROTECTING PLATE FOR- S TRUCTURAL 'BUILDING BLOCKS Filed Feb. 26, 1940 IRVING STAGG BY ATTORNEY;

Patented Sept. 23, 1941 CORNER PROTECTING PLATE FOR STRUC- TURAL BUILDING BLOCKS Irving Stagg, Garden City, Mich.

Application February 26, 1940, Serial No. 320,932

2 Claims.

This invention relates generally to protecting corner plates for wall structures and refers more particularly to those designed for use with face plates of structural blocks at the corners of the walls.

One of the essential objects of the invention is to provide a protecting plate of this kind that is simple in construction, inexpensive to manufacture, and easy to install.

Another object is to provide a protecting plate of this type that also serves as a tie or coupling between adjacent face plates at the corner of the wall.

Another object is to provide a corner plate that has its own fastening means and therefore may be secured in place without requiring additional or separate fastening means.

Another object is to provide a corner plate that conceals the joint between adjacent face plates at the corner of a wall and provides a neat appearance.

Another object is to provide a corner plate that can be applied to the face plates after the structural blocks are completely formed without injury thereto and without having to be embedded in or otherwise included as a part of such blocks.

Other objects, advantages and novel details of construction of this invention will be made more apparent as this description proceeds, especially when considered in connection with the accompanying drawing, wherein:

Figure 1 is a fragmentary perspective view of a wall structure at an outside corner thereof;

Figure 2 is a fragmentary perspective view of a wall structure at an inside corner thereof;

Figure 3 is a vertical sectional view taken substantially on the line 3-3 of Figure 1;

Figure 4 is a detail perspective view of the corner plate shown in Figure 1;

Figures 5 and 6 are fragmentary bottom perspective views of the structure shown in Figure 1.

Referring now to the drawing, A is the body portion and B and C, respectively, are the attaching portions of a corner protecting plate embodying my invention.

As shown, the body portion A and attaching portions B and C are integral parts ofa sheet metal stamping which may be formed as illustrated in Figure 1 for an outside corner of a wall, or may be formed as illustrated in Figure 2 for an inside corner of the wall. In each instance the corner plate is designed for use with adjacent face plates I2 of a structural block such as E at the corner of the wall.

Preferably the body portion A has two vertically elongated substantially flat wing-like parts In and II, respectively, disposed at substantially right angles to each other for proper surface-tosurface engagement with adjacent face plates [2 of the block E at the corner of a wall. The attaching portions B are in the form of tongues l3 which initially, as illustrated in Figure 4, extend upwardly from the upper edges of the wings l0 and H in endwise relation thereto but are adapted to be bent to a substantially horizontal position over the upper edges of the face plates l2. The portions C are at the lower edges of the wings I0 and II and preferably comprise lateral flanges I5 having upstanding tongues l6. Preferably these flanges l5 extend along the lower edges of the wings I0 and II from their inner to their outer upright edges and are engageable with the lower edges of the face plates I2, while the tongues [6 are located at the outer edges of the flanges I5 substantially midway their ends and are adapted to extend upwardly upon the inner sides of the face plates l2, preferably between such face plates and the body portions ll of the blocks. I

In use, the protecting plates are applied to the face plates l2 at a corner of a wall by first engaging the flanges l5 and tongues It with the lower edges of the face plates l2 and then bending the tongues [3 over the upper edges of said face plates. As a result, such face plates are tied together at the corner of the wall and may then be secured in place by suitable bonding material as set forth in my application filed February 12, 1940, bearing Serial No. 318,615.

What I claim as my invention is:

1. The combination with a structural block having face plates upon adjacent sides thereof, of a protecting corner plate having substantially rectangular side portions disposed in surface-tosurface relation upon the face plates and substantially equal in length to the height thereof, and means at the upper and lower ends of said corner plate for attaching it to said face plates, the attaching means at the lower end of said corner plate consisting only of hooked flanges projecting from said side portions, a part of said hooked flanges bearing in surface-to-surface relation against the lower edges of said face plates, and other parts of said hooked flanges extending upwardly between the face plates and body portion of the block, and the attaching means at the upper end of the corner plate consisting only of tongues projecting from said side portions and disposed in surface-to-surface engagement with the upper edges of said face plates.

2. The combination with a structural block having face plates upon adjacent sides thereof, of a protecting corner plate having elongated side portions disposed in surface-to-surface relation upon the face plates and substantially equal in length to the height thereof, and means at the upper and lower ends of said corner plate for attaching it' to" said face plates, the attaching means at the lower end of said corner plate consisting only of L-shaped flanges at the lower ends of said elongated side portions, the bases of said L-shaped flanges bearing in surface to surface relation against the lower edges of said face plates, and the upright parts of said L- shaped flanges extending upwardly between the face plates and body portion of the block, and the attaching means at the upper end of the corner plate consisting only of tongues projecting from said elongated side portions at the upper ends thereof and bearing in surface-to-surface relation against the upper edges of said face plates.

IRVING STAGG. 

